Typewriting machine



. Nov. 9, 1926. 1,605,957

A.- G. F. KURowsKl TYFEWRITING MACHINE original Filed Sept. 27. 1922 2Sneecs-'Sheed l Affe/'n Nov. 9 1926.

A. G. F. KuRowsKl TYPEWRIT'ING MAHINE original Filed Sept 27. 1922 2.Sheets-Sheet 2 Patented Nov. 9, i926.

ALFRED G. F. KUROl/VSK, OF BROOKLYN, NEW YORK, ASSGNOR TO UNDERWOODTYPEWRITEB COIVIPANY, 0F NEV' YORK, N. Y., A CCRFORATION OF DELAVARE.

TYPEWRITING MACHINE.

G'rignalapplication filed September Q7, 1922, Serial No. 590,756,Divided and this application filed January 7, 1925. Serial No. 972'.

rlhe present invention relates to sounddeadening casings for typewritingmachines.

A casing of this character has an opening in the front thereof, throughwhich the keyboard extension of the machine may project, for access bythe operator to the keys thereof. The casing, at its base, is ordinarilyof a width conformable to the width of the main frame of the machine;allowance being made for easy placement and removal of the machine; but,above the base, is flared or extended laterally outward to provide spacein the upper part thereof, for movement of the typewriter-carriage inletterfeed and return directions; and the upper part of the casing isslotted horizontally and longitudinally thereof, for projectiontherethrough, and for movement therealong, of the operating levers onthe typewritercarriage.

The casing is usually made in two sections, to wit, a body-section7provided with a suitable base-piece, and a cover-section, hingedthereto; the cover being opened for placement and removal of themachine. The opening in the front wall of the casing` for the keyboardextension may extend to the top of the casing-body; or may not extend tothe top of the casing-body, in which latter event the machine may beinserted into the casing, in tilted position, and the keyboard extensionpassed forward through the opening,` in the front wall thereof. A windowin the top of the casing has been provided for observation of theprinting on the platen. rlhe shell-sections of the casing, either asdie-castings or as sheetmetal stampings, have been provided withlining-sheets of sound-deadening material, such as felt; and the jointsthereof, at the openings or slots, through which project the keyboardand the operating,` levers of the machine, have been equipped withcushions or edgings, which close the same against the emission of soundwhen the machine is in place; without, however, interfering` withplacement or removal of the machine, or with movement of the carriageand operating levers thereon.

The invention, as to certain features thereof, has special reference tocasings made of sheet-metal, and to casings in which the opening for thekeyboard extension of the machine extends to the top of the casingbody,to permit placement of the machine without insertion of the keyboardextension into the body thereof,

A feature, of the invention is the provision of novel and efficientmeans for closing the joints at the sides of the machine between thekeyboard extension and casing; and above the keyboard extension, betweenthe front wall of the machine-frame and the casing; such' means beingtorsionally resilient and flexible, so that there may be maintained vapressure of the upper portions thereof, rearward against the front ofthe machine, and of the lower portions thereof laterally against thekeyboard extension of the machine, to close, throughout their lengths,the joints between ther several parts of the machine and the casing;while permitting proper flexing thereof Vfor insertion and removal ofthe machine.

Another feature of the invention is the provision of a removable plate,adapted, when in place, to close the upper portion of the opening` inthe front wall of the casing over the keyboard extension, and to seat,in a novel and effective manner, the .cushion which forms the lower wallof the slot, along which the operating levers on the carriage move; thisremovable plate with the cushion and cushion-seat, and suitably equippedwith sound-deadening material to close the joint between the casing andthe front of the machine, being securely and quickly attachable, as awhole, to the casing front wall at the upper edge thereof.

i A. further feature of the invention is the provision of a shade on thecasing, to intercept light-rays which would otherwise be objectionablyreflected from the windowpane to the eyes of the operator; such shadebeing'securely flexible to the shell of the casing, and, in thepreferred form thereof, being1 a strip of rail or sheet-material,projecting; marginally upward from the edge of the window, and servingas a frame for the window-pane.

f Still another feature of the invention is a casing, and the method ofmaking the .sul

same, wherein the shells, forming the bodyportion and the cover, areeach of unitary, seamless structure, drawn into s'hap'e by suitable diesor presses, while in heated condition.

This application is a division ot my copending application, Serial No.590,756, liled September 27, 1922 (now Patent No. 1,;70,309, datedJanuary 19, 1926).

Other features and advantages will hereinafter appear.

In the accompanying drawings,

Figure 1 is a view, in front elevation, partly in cross-section, of theCasing; t-he keyboard extension lof a typewriting inachine being shownvprotruding through the iront ywall of the casing. I 4 A l Figure 2 is aview, inV cross-sectional side elevation, taken on the line 2`2 otFigure 1. Figure 3 isti' top plan view ofthe casing, the cover beingbro'ken away to s'hw the interior 'of' the casing-body.

Figure f1 is a rear view of a piece forming,

when in plate, the upper portion oi the front wall of the casing.' v uFigure i'sv a view, in longitudinal crossseetion, taken on' the line5,'-5 of Figure 2, showingythe ineans for attaching and locking thefront 'piece of igure i to the inain body-portion of the casing. y i

Figure 6 is a detail view, taken in crosssection on the line 6460iFigure 41, through the sound-deadening device at theside edgetheuopening inthe front wall of the casing; one of the front posts ofthe typewriting inachine, and the position oi' the :device when theinachineis in place in the casing, being shown in dotted lines. l Y fvrThe casing is in two principal parts, to wit, abody-portion `10 ,and acofver 11; the cover being hinged at 12 at the rear thereoi to thebody-portion," Both ,the cdsing-bod'y and cover are shown as oftsheet-material, preferably aluminum. The rear, front, and side walls Iofthe casing-body are lined with sun'd-'deedeni'ng material 13. The troniwall of the csing is eut aivay, as at 141-, so that the keyboardeiitension lo't the typewriting machine 16 indicatedV in dotted linesmay protrude therethrough. y

For seeuring thelining 13 tothe sheeting 10 ot the easing, the letterhas,l staked therein, near its upper and lower edges, bosses or bushings17 which pass through openings in the lining, and which are threaded 'toreceive screws 18', which pass through .retaining straps' 19 laidllin'igitudinally of the inner face ot-the lining, to hold the straps tothe bushings 17, At its llov-.ier edges the sheeting 10 has areinforcing bead 20 iorrned peripherally thereon; and, from the bead 20,is turned inward to, ltorni `a horizontal peripheral flange 21 uponwhic-h therlower edge of the lining 13 is set. it the front ot thecasing-body the lining 13 terminates with the sheeting 10 at the sidesof the opening 14- tor the keyboard extension. Below the keyboardextension, the sheeting 10 is continued, from side to side of thecasing,

as a slightly offset strip 10au (see Figure 2). The piece 10n is linedwith a sounddeadening strip 23 held thereto by a strap 24, which issecured by screws 18a to bushings 17 a staked or riveted in thesheet-metal. The lining-strip 23, like the lining 13, is set upon theperipheral flange 21 of the casingbedy` The upper edge of thelining-strip Q3 is extended, as at 23a, "as a resilient tongue to engageand press against a rod 26 on the machine when the latter is in place. V

As shown in Figure 1, the casing is flared laterally upward and outwardon the lines 30, to provide room inthe top thereof for movement o theplaten-carriage inv letterleed and return directions. The flaring sidewalls 30 terminate, at their upper ends,zin horizontal overhangs 31, theends of which are turned upward, to form flanges .32; The sidelining-pieces 13 extend upward from the flange 21 at the foot of thecasing-body, along the flaring walls 30, ,and thence, with reducedthickness on the left-hand overhang across the overhangs, to theflanges-32, where they are kagfain turned up to the height of theiian'gesl 32. Near their lower edges," and 'at their upper edges, theside lining-pieces 13 are secured to the sheeting of the casingbody bystraps 19,l in the manner hereinbefore described. lV here the lett sidepiece 13 is bent from a lateral flare to the horizonta'lv overhang, itis held Vby a strap 33, carried on'4 fingers 34, secured to the Jirontand rear walls of the casing-body by two of the screws 13, which assistin holding the front and rear upper straps 19. It will ybe noted (seeFigure 1) that the strap 33 is' bent longitudinally, as Vshown at 35, tothe desired bend of the lining-piece, :troni an upward incline to ahorizontal.

When thefinachiiie is in the position in the casing determined by thelocation of its 'eet in guards' 60, the front corner-posts of themachine, as' shown. in Figure 3, abut the front wall ot the casiniy atthe side edges of the Vopening in the latter for the keyboard extension.For providing a sounddearlening` joint lon the lines ot Contact oi? theiront posts ofthe machine with the front wall of the casing, and wherethe keyboard extends through the latter, cushions 71 (see Figurey 6) areprovided. These cushions, which extend vertically along the side walls72 oit the opening vin the casing, each coniprise a rubber tubing 73,held in the' fold ot' a strip ot felt 711; the ends ot the teltheingbrought together and .held to the casing by vertical straps 7 5, which,'like the straps 19, are secured to bushings 76, staked or riveted tothe sheeting 10 ot the fio cured by screws 113 to a Ushaped portion 114of a bar 115, which extends longitudinally of the cover at the' rear ofan opening or window 116 in the cover, through which theprinting on theplaten 117 may be observed. As shown inpFigure 1, the bar 115 iscontinued down the sides of the opening 116; and, asshown in Figure 2,is continued along the front of the opening 116; serving as a frame orsash for a windowpane 118. rllhe bar 115, along the several reachesthereof, is secured by rivets 119 to to sheeting 11 of the cover. Thepane, with its edges bound by a strip or strips of shock-absorbingmaterial 120, is set within the U or channel shaped portions 11-1 of thebar, and against a peripheral flange or offset 121 thereof. Thelining-piece 112 of the cover is extended slightly forward of itsholding screws 113, as shown at 122 fFigure 2), to serve as a supportfor the rear edgeof the window-pane. At its sides, the window-pane isheld in its frame (see Figure 1), byl metal Vstrips 123, secured byscrews 12:1 to the bar 115. At its front edge, the window-pane issupported by a rearward offset 125 of a bar 126, which may be one withthe plate 108, forming part of the set for the upper cushion 106. Therear, side, and a portion of the front, reaches of the bar V115 have anupward offset or flange 12?, which serves as a shade to intercept raysof light which vwould otherwise fall upon the glass at such angle as tobe objectionably reflected into the eyes of the operator.

To serve as stops or rests for the cover, on the forward part of thecasing-body, are two piecesof fiber 176, one at each' side of thecasing, secured to the casing by screws 177. The edge of theCasing-cover is recessed or cut away, at 176, to provide seats for thecover on the liber-pieces 176;

and these recesses are so shaped as to permit the cover to clear thefiber-pieces 17 6 when swung up and down around its hinge 12. The stops17 6 and seats'li'S positively determine the closed position of thecover, and eliminate the necessity for truing the opposing edges of thelining-strips at the sides of the covei` and casiugsbody. l

As to the removable member `or plate 7 6,

it is to be notedthat the construction and attachment thereof permit ofthe front of the casing, at the sides ofA the opening for thetypewriter-keyboard, being continuous in one piece with the sheeting10,v forming scope of the invention, `and portions of the improvementsmaybe used without others. Having thus described my invention, I claim:

1. A sound-deadening casing for a typewriting machine having akeyboard-exteni sion, said casing having an opening in the front wallthereof through which said keyboard-extension may ybe passed, and atubulai resilient member fastened at each side of said opening forsealing ,the joints bet-Ween said machine and said casing against theemission of sound. n

`2. .A soundleadening casing for a typewriting machine having akeyboard-extension', said casing having an opening in the front wallthereof through which said keyboard-extension .may be passed, and meansfastened lat each side of said opening for sealing the joints betweensaid machine and said casing against the emission of sound; said meansincluding a flexible rubber tubing held in 4a folded strip of felt, oneof said strips being fastened along each side of said opening with thetubing disposed adjacent the edges of the opening. y

3. A sound-deadening casing for a type writing machine, having anopening inthe front wall thereof,through which the keyboard extension ofthe machine may be passed, and meansat the edges of said opening, forsealing the joints between `the casing and the machine, comprisingresilient, tubular members adapted to be swung laterally, from normalposition, by the keyboard eX- tension, out of the path ofthe latter,and, by tendency to return to normal position, to bear against the.keyboard extension.

1. The combination with a typewriting machine Aof a sound-deadening,-casing1 having an opening in the front wall thereof for the keyboardextension of the machine, and means for sealing the oints between thecasing and the machine at the sides of said opening, comprising tubularmembers flexibly `mounted by strips of sound-deadening lili material,the lower portions of which members may be forced laterally fartherapart 'oy the keyboard extension, and the upper portions of whichmembers may be forced forward by Contact with the front of the machine,both upper and lower portions being maintained more closely inengagement with the opposed machine-parts by the torsional tension ofthe members.

5. The combination with a typewriting machine having akeyboard-extension, of a sound-deadening casing including a metallicshell and a yieldable, felt, inner lining therefor, said casing havingan opening in its front wall for said extension to project therethrough,and means fastened along the sides of said opening for sealing thejoints between said machine and said casing against the emission ofsound, said means including a rubber tube held in the folds of aflexible felt strip, the latter being fastened against the inner surfaceof said felt lining adjacent each side of said opening., said lining andsaid strips being disposed adjacent said opening, so that said tubeswill be pressed against said yieldable lining by the front of saidmachine when the latter is in place, thereby preventing said tubes frombeing pressed directly between metallic elements of said machine andsaid casing.

G. The combination with a typewriting machine, of a sound-deadeningcasing having a fixed front wall, cut away from the top thereof toprovide passage for the keyboard extension of the machine in loweringthe machine from the top of the casing to the base thereof, and flexiblestrips attached to the edges of the casing at the sides of the openingin the front plate thereof, to seal the joints between the casing andthe keyboard extension; said strips being laterally yieldable, toprovide for the downward passage of the keyboard extension, and beingflexible to bear closely against the keyboard extension.

7. A, sound-deadening casing for a typewrit-ing machine, having a lowerbody-portion with a fixed front wall cut away from the top thereof toprovide passage for the keyboard extension of the machine in loweringthe machine from the top of the body-portion to the base thereof, aplate adapted to be set on the front wall of the casing, above thekeyboard extension Aof the machine, and manually operable means fordetachably securing such plate to the front wall of the bodyportion atthe sides of the opening in the latter.

8. A sound-deadening casing for a typewriting machine, having a lowerbody-portion with a fixed front wall cut away from the top thereof toprovide passage for the keyboard extension of the machine in loweringthe machine from the top of the bodyportion to the base thereof, a plateextending lengthwise of said casing and adapted to be set on the frontwall of the body-portion, above the keyboard extension of kthe machine,and means for securing such plate to the iront wall of the body-portionat the sides of the opening in the latter; said attachable plate havinga seat thereon for a cushion adapted to form one wall of a slot throughand along which the operating levers of the carriage of the machine maypass.

9. A sound-deadening casing for a typewriting machine having a lowerbody-p0rtion with a fixed front wall cut away from the top thereof toprovide passage for the keyboard extension of the machine in loweringthe machine from the top of the bodyportion to the base thereof, a plateadapted to be set on the front wall of the body-portion, above thekeyboard extension yof the machine, and means for securing such plate tothe front wall of the body-portion at the sides of the opening inthelatter; said attachableplate having fixed thereto, where it crosses theopening in the wall of the body-portion, a pendant strip ofsounddeadening material.

10. A'sound-deadening casing for a typewriting machine, having a lowerbody-portion with a fixed front wall cut away from the top thereof toprovide passage for the keyboard extension of the machine in loweringthe machine from the top of the bodyportion to the base thereof, a plateadapted to be set on the front wall of the body-portion, above thekeyboard extension of the machine, and means for securing such plate tothe front wall of the body-portion at the sides of the opening` in thelatter; said means comprising registerable pin-and-socket connections onthe plate and said front wall, a slotted slide on the said front wall,and a pin on the plate projecting through said front wall, and having ahead on its inner end to be engaged by the slide when the latter ismoved to locking position.

ill. A sound-deadening casing for a typelwriting machine including alower bodyportion with a fixed front wall, the latter having a sectioncut away from the `top thereof downwardly to provide for lowering thekeyboard-extension of said machine, a plate extending lengthwise of saidcasing and arranged against the inner side of said front wall, and meansfor detachably securing said plate to said wall, said means including aslide shiftable laterally on the inner face of said plate on each sideof the opening in said wall, and pins arranged to be held in said walland for passing through said plate intothe path of said slides, thelatter being arranged with cam-portions for engaging under head-portionsprovided on the inner ends of said pins, each of said slides being'further arranged with a handle lill at" its outer end, whereby theslides may be readily 'actuated manually for fastening orunfaste'ningr-` said plate.

` 12'.'- "A sound-de'a'dening casing for a typewriting machine, having alower body-portion-v with fixed front \vall,i out away from the topthereof to provide passage for the keyboard vextension of the machineVin lowerth machine from the top of the bodyportion to the base thereof7a plate adapted to be set on the' front wall ofthe body-portion, .abovthe keyboard leXt'ension Iof the ina'cliine,` and means for securingsuch plate torsa'id front wall at the sides of the opening in thelatter; said means comprising a yslide horizontally shiftable on the4inner face of the'front 'of the body-portion at each side of theopening therein,- pins held in said 'wall and passing through said plateadapted to be passed through said front wall into the path of movementof the slides, and dam-portions on the slides for engaging the pinsfandeam'ining the plate tightly to said front wall' when-*the 'slidesare moved to plate-locking position.

13. A soulul-deadening casing for a typewitin'g mach-ine, including asheet-metal body',` sheets of felt or other sound-deadening materiallining' said bo'dy interiorly, bushings staked or riveted into thesheeting of the casing, and passing therefrom through the.lining-material;stiaps se't on. the ends of bnslingsv against the"liningimaterial, and screwsor` vpins-passin` through the straps and intothe bushings, 'to hold the straps and lining-'material 'fast to the'metal-sheeting.

'145 A sound-deadening casing for a typewriting machine, having' anopening in the top thereof,` through which the printing on the platenmay be iobserved, a pane of transparent "material, setto the opening7against the under side of said top7 and a rail lined tothe casingmarginally of said pane and having a portion pro'tiuding upward throughsaid openingto shadet'hepane from lightys ivhich'wnld be' refiectd bythe pane to theoperator.AA f 15. A sheet-metal sound-deadening` casingfr a typewriting 'machine7 having an openthrotigh which the printing onthe platen may b'e dbservechn panev of transparent inaterial,`s`e't"int`ei"iorly ltd 'the opening, .aA lining of sound-dadeningmaterial, a facing of sinotli Velieet-mterial` 'for the rear upper ofthe'casing, a rail set marginally of the pening", *and protruding upwardfrom' the 'casing to shade the pane from lightwhich would be reflectedto the 'operator; said rail having a flange' set against the inner faceof tliecasing sheet-material, ftni securing the rail to 'the casing,yand to serve as a seat for the pane, and an L-shaped o'i'fset freni theflange to serve as a frame for the pane, and as a seat for the smoothinner lining-piece.

16. sheet-metal sound-deadeni'ng casing for a typewriting machine,having an opening through which the printing o n the platen may beobserved, a pane of transparent material set to the opening", a liningof sounddeadening material, a facing of smooth sheet-material for Itherear upper part of the casing, a rail set marginally of the opening, andprotruding upward from the casing to shade the pane from light-rayscoming` from the rear and sides which would be reflected to theoperator; said rail having a fiange set against the inner face of thecasing sheet-material, for securing the rail to the casing,4 and toServe as a seat for the pane, and an L-shaped offset from the fiange to'serve as a frame for the pane, and as a seat for the smooth innerlining-piece; which lining-piece is secured tosuch seat, and is extendedforward thereof to overlap and hold the pane in place.

i7. A sound-deadening casing for a type` uiting machine having akeyboard-extension, said casing having a lower body-portion shell ofsheet-metal, and a top 'shell of sheetmetal, arranged lwith areinforcingbead adjacent its lower extremity, said bead-portion being integrallyformed on said top shell in the back and side walls thereof, said topshell and said lower body-portion shell each having a portion out awayat the front for forming a lengthwise actuating slot, said body-portionshell also having a section of its front wall out away to permit saidkeyboard-e-tonsion to pass therethrough and a plate fastened to thefront wall of the lower body-portion over the keyboard-opening andextending upwardly so as to partly close said lot-opening,` said platehaving a bead-portion arranged to form a continuation of the bead onsaid top shell for increasing the strength and appearance of saidcasing. p

1S. The combination with a typewriting machine havin@ a closed front, ofa sounddeadening casing comprising a front wall having an openingtherein through which a portion of the machine entends, tubular flexiblemembers for sealing the joints between the Vframe of the machine and thecasing at the sides of the opening, a bottom plate for said casing, andcups on said bottom plate toV receive the feet of the machine, said cupsbeing effective to hold the machine against the slot-sealing members.

nmnnn e; r. Kunowsnr

